:root {
  --bg: #0d1020;
  --card: rgba(255,255,255,.08);
  --text: #f5f7ff;
  --muted: #aeb7d4;
  --border: rgba(255,255,255,.14);
  --ok: #43d17a;
  --bad: #ff5b74;
  --warn: #ffc857;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top right, rgba(88, 101, 242, .38), transparent 34rem),
    radial-gradient(circle at bottom left, rgba(67, 209, 122, .16), transparent 28rem),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(560px, 100%);
  padding: 34px;
  border: 1px solid var(--border);
  border-radius: 28px;
  background: var(--card);
  backdrop-filter: blur(16px);
  box-shadow: 0 24px 80px rgba(0,0,0,.35);
}

.badge {
  display: inline-flex;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(88, 101, 242, .18);
  border: 1px solid rgba(88, 101, 242, .35);
  color: #d8dcff;
  font-size: 13px;
}

h1 {
  margin: 18px 0 10px;
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.1;
}

.sub {
  margin: 0 0 26px;
  color: var(--muted);
  line-height: 1.7;
}

.form label {
  display: block;
  margin-bottom: 8px;
  color: #e7ebff;
  font-weight: 700;
}

.inputRow {
  display: flex;
  gap: 10px;
}

input {
  flex: 1;
  border: 1px solid var(--border);
  outline: none;
  border-radius: 16px;
  background: rgba(0,0,0,.22);
  color: var(--text);
  padding: 15px 16px;
  font-size: 17px;
  direction: ltr;
  text-align: left;
}

input:focus {
  border-color: rgba(88, 101, 242, .9);
  box-shadow: 0 0 0 4px rgba(88, 101, 242, .14);
}

button {
  border: 0;
  border-radius: 16px;
  padding: 0 22px;
  font-size: 16px;
  font-weight: 800;
  color: white;
  background: #5865f2;
  cursor: pointer;
}

button:disabled {
  opacity: .65;
  cursor: wait;
}

small {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.6;
}

.result {
  margin-top: 22px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--border);
  line-height: 1.7;
}

.result.ok { border-color: rgba(67,209,122,.45); background: rgba(67,209,122,.12); }
.result.bad { border-color: rgba(255,91,116,.45); background: rgba(255,91,116,.12); }
.result.warn { border-color: rgba(255,200,87,.45); background: rgba(255,200,87,.12); }
.hidden { display: none; }

@media (max-width: 520px) {
  .card { padding: 24px; }
  .inputRow { flex-direction: column; }
  button { min-height: 52px; }
}